Flask



March 13, 1951 1 R, PEREZ UAS 2,545,302

FLASK Filed June 2, 1947 a' mxmmmm l Patented Mar. 13, 19151 Application June 2, 1947, Serial No. 751,909 In Mexico June 22, 1946 3 Claims.

This invention relates to flasks, and particularly does it refer to a useful and novel flask making it possible to keep a given substance and its solvent separataand to dissolve the former at the moment it is to be used.

The main object of the invention is to supply a flask provided with special means which will allow the user to preserve indefinitely a dry substance together with but out of contact with its solvent and makes it feasible for the solution to be made at a given moment, as for example, when it is dispensed, which is of great value where a freshly made solution is intended tc be used.

The features of the invention will be apparent from the following description and from the accompanying drawings which serve as a typical illustration of a practical embodiment of the invention, the same reference characters'being used to designate the same or like parts.

In the drawings:

Fig. l is an elevation of a flask made according to the invention, and

Fig. 2 is a vertical section of the same flask partly in elevation, for the purpose of better disclosing its features and inside arrangement.

Before describing this invention in a detailed manner as shown in the drawings, it is to be understood that the drawings merely show by way of example the preferred form of putting it into practice, and thus the invention is not restricted to the specified details as illustrated and described. Therefore, changes and modifications may be made without departing from the scope of the invention, or from the features thereof set forth hereinafter in the claims.

As will be understood from the foregoing, the flask embodying my invention allows a dry substance to be preserved together with, but out of contact with a liquid solvent and provides convenient means for preparing the solution at the moment when it is to be used or applied. According to the accompanying drawing, flask Ill, which may be of the common or standard type, is provided with a cover or mantle II, which is preferably threaded on to the neck I2 of the bottle or flask. 4'Ihis cover or mantle may be made ,of a plastic material, such as caoutchouc, etc. and will be open at the top I3, in order to admit a rod I 4, which is normally supported within the flask. The lower end of the rod is hollow and provides an inverted glass or recess member I5, as will be more clearly noted by inspecting Fig. 2. The cover or mantle II isprovided with a packing element I6 in its bore I3 for the admission of rod I4 and for providing an effective seal for the flask.

The flask provides at its lbottom an upwardly extending integral element or projection Il which is perfectly centered, the interior shoulder of inverted hollow glass container or recess member I5 at the lower end of rod I4 being fitted and adjusted' thereto. An` effective hermetic seal of the recess of inverted glass or container I5 may be secured by grinding the contactsurfaces by means of wax, resin, or like packing material giving the same result. Member I1 is preferably frusto-conical and virtually forms a stationary closure for inverted container I5, which is of corresponding form but deeper than the height of member II, so that an internal chamber results between the two.

The dry substance to be dissolved is kept within recess member I5 at the end of rod I4, and rests on the upper surface of upwardly projecting member I'I, and if these parts are properly adjusted, thefliquid or solvent may be enclosed within the flask, so that' by removing rod I4, the liquid solvent may be instantly brought into direct contact with the dry substance to make the solution.

Following claims are made:

l. In a flask comprising a hollow flask body having an imperforate closed bottom, side walls and an opening in the upper end thereof, the combination of an integral upwardly extending projection forming a closure member upon the intermediate portion of the bottom within the flask body; .and an insertible rod adapted to extend down into the latter andhaving a cavity in the lower endthereof forming a container on said rod of greater internal depth than the height of the projection or closure member upon said bottom and removably fitting said projection or closure member tightly so that an internal chamber results between the upper end of said projection and the inner end or bottom of said cavity or container.

2. In a flask comprising a hollow flask body having an imperforate closed bottom, side walls and anv opening in the upper end thereof, the combination of an integral upwardly extending frusto-conical projection forming a closure member upon the intermediate portion of the bottom within the flask body; and an insertible rod adapted to extend down into the latter and having a corresponding tapered cavity inthe lower end thereof forming a container on said rod of greater internal depth than the height of the projection or closure member upon said bottom and removably fitting said projection or closure membertightly so'that an internal chamber results between the upper end of said projection and the inner end or bottom of said cavity or container.

3. In a flask comprising a hollow flask body having an imperforate closed bottom, side Walls and an opening in the upper end thereof, the combination of an integral upwardly extending frusto-conical solid projection forming a closure member upon the intermediate portion of the bottom within the flask body; and an insertible 2,545,302 3 4 rod adapted to extend down into the latter and REFERENCES CITED having a corresponding inwardly or upwardly tapered cavity in the lower end thereof forming a lef ggenferens are of record m the container on .said rod of greater Vinternal depth than the "height of the projection or closure mem- 5 UNITED STATES PATENTS' ber upon said bottom and removably tting said LNmnber Name Date projection or closure member tightly so that an 1,005,650 Larrison Oct. 10, 1911 internal chamber results between the upper end 1,275,315 Smith Aug. 13, 1918 of said projection and the inner end or bottom of 1,585,912 i Heublein May 25, 1926 Said cavity 0r Container. 1o 1,614,067 Heublein Jan. 11, 1927 JOSE R. PEREZLIAS. 1,922,811 YKabrlk Aug. 15, 1933 

